I cannot download maps of an area

I am trying to download maps of specific areas of a country but it is completely impossible, do you know when it will be possible to do it? Thanks.

You probably refer to garmin.openstreetmap.nl/ which is out of maintenance for quite a long time now. Try alternatives like https://extract.bbbike.org/ or more generally https://wiki.openstreetmap.org/wiki/OSM_Map_On_Garmin/Download